android三种加载图片方式

package smalt.music.utils;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.BitmapFactory.Options;

//载入图片的方法:3种

public class BitmapUntil {

// 直接加载图片

public static Bitmap getBitmap(String path) {

Bitmap bt = BitmapFactory.decodeFile(path);

return bt;

}

// 指定大小加载图片

public static Bitmap getBitmap(String path, int size) {

Options op = new Options();

op.inSampleSize = size;

Bitmap bt = BitmapFactory.decodeFile(path, op);

return bt;  www.2cto.com

}

// 按宽高压缩加载图片

public static Bitmap getBitmap(String path, int width, int heigh) {

Options op = new Options();

op.inJustDecodeBounds = true;

Bitmap bt = BitmapFactory.decodeFile(path, op);

int xScale = op.outWidth / width;

int yScale = op.outHeight / heigh;

op.inSampleSize = xScale > yScale ?

xScale : yScale;

op.inJustDecodeBounds = false;

bt = BitmapFactory.decodeFile(path, op);

return bt;

}

}